Network interfaces not reachable

[Bob Sauvage]

Hello *,

I've configured my two network interfaces : ETH0 and ETH1. ETH1 has 3 
subinterfaces.

When I restart my server or just the network by 'service network 
restart', my networks interfaces are no longer reachable.

I have to stop ETH0 and after ETH1. Then, I restart ETH1, I stop 
ETH1:xxx1 and then the network is reachable. And finaly, I can restart 
my ETH1:xxx1.

I feel like I have to restart interfaces in a certain order.

Do you have any ideas ?

Thanks in advance,